KR20160020346A - Laundry Treating Apparatus and Control Method for Laundry Treating Apparatus - Google Patents

Abstract

The present invention provides a method for controlling a compressor, comprising: a first driving step of supplying an alternating current of a first frequency to the compressor; a first temperature measuring step of measuring a temperature of the refrigerant discharged from the compressor; A second temperature measurement step of measuring a temperature of the refrigerant discharged from the compressor when the first reference time elapses; a second temperature measurement step of measuring a temperature of the refrigerant discharged from the compressor based on a difference between the temperature measured in the second temperature measurement step and the temperature measured in the first temperature measurement step And controlling the first frequency by using the first frequency.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a laundry processing apparatus,

The present invention relates to a clothes processing apparatus and a control method thereof.

The clothes processing apparatus is a collective name of home appliances capable of washing clothes, drying clothes, drying clothes, and washing clothes.

The clothes processing apparatus capable of drying the clothes dries clothes by supplying hot air to the space where the clothes are accommodated. In the conventional clothes processing apparatuses, there are devices using a heat pump.

The bottom pump generally includes an evaporator for evaporating the refrigerant by heat exchange with ambient air, a condenser for condensing the refrigerant to heat the ambient air, and a compressor for compressing the refrigerant discharged from the evaporator and supplying it to the condenser.

However, the clothes processing apparatus using the heat pump has a problem that the temperature of the air introduced into the evaporator is not constant depending on the environment where the clothes processing apparatus is located, and thus it is difficult to achieve a certain drying performance.

That is, when the clothes processing apparatus is operated at a low temperature condition (when the clothes processing apparatus is installed in a cold region or in cold season), since the temperature of the air flowing into the evaporator is low, It took a long time to raise the temperature to the desired level. This increases the drying time and increases the energy consumption of the clothes processing apparatus.

On the other hand, when the clothes processing apparatus is operated at a high temperature condition (when the clothes processing apparatus is installed in a hot region or when the clothes processing apparatus is operating in hot season), the temperature of the air flowing into the evaporator is high, It is advantageous to raise the temperature of the air to a desired level, but it causes problems such as an increase in the load of the compressor.

Further, when the clothes processing apparatus is installed in a high temperature condition or a low temperature condition, the drying time is required to be shorter or longer than the drying time required when the clothes processing apparatus is operated under normal conditions (18 to 25 degrees Celsius) There is a problem that the drying time varies when the same amount of clothes are dried.

Disclosure of Invention Technical Problem [8] The present invention provides a control method of a clothes processing apparatus capable of drying clothes in a constant drying time regardless of ambient temperature conditions when drying the same amount of clothes.

Another object of the present invention is to provide a control method for a clothes processing apparatus capable of controlling a time at which a temperature of a refrigerant reaches a target temperature by actively controlling a flow rate of the refrigerant according to an ambient temperature condition of the clothes processing apparatus do.

It is another object of the present invention to provide a control method of a clothes processing apparatus capable of maintaining a constant time for a temperature of a refrigerant to rise to a predetermined temperature range, regardless of an ambient temperature condition.

Another object of the present invention is to provide a control method for a clothes processing apparatus capable of maintaining a constant time required for the temperature of air supplied to clothes to reach a predetermined temperature range.

It is another object of the present invention to provide a control method of a clothes processing apparatus capable of shortening a drying time of a clothes processing apparatus operating under a low temperature condition.

Further, the present invention provides a control method of a clothes processing apparatus for stably controlling the heat exchange cycle by controlling the number of revolutions of the compressor (controlling the frequency of the alternating current supplied to the compressor) based on the temperature of the refrigerant discharged from the compressor And to solve the problem.

It is another object of the present invention to provide a control method of a clothes processing apparatus capable of making a temperature change of a refrigerant circulating under a high temperature condition or a low temperature condition coincide with a temperature change of a refrigerant circulating under normal conditions within a short period of time .

An evaporator for exchanging heat with the air flowing into the circulation channel to evaporate the refrigerant; a heat exchanger for exchanging heat with the air passing through the evaporator; And a compressor for controlling the flow rate of the refrigerant by adjusting the frequency of the alternating current to supply the refrigerant discharged from the evaporator to the condenser, the method comprising the steps of: A first driving step of supplying an alternating current of a first frequency to the compressor; A first temperature measuring step of measuring a temperature of the refrigerant discharged from the compressor; A second temperature measurement step of measuring a temperature of the refrigerant discharged from the compressor when a predetermined first reference time elapses after the progress of the first temperature measurement step; And a first adjustment step of maintaining or changing the first frequency based on a temperature difference between the temperature measured in the second temperature measurement step and the temperature measured in the first temperature measurement step ≪ / RTI >

The first adjusting step may be performed when the temperature of the refrigerant measured in the second temperature measuring step is lower than a predetermined target temperature.

In the first adjustment step, the first frequency change may proceed when the temperature of the refrigerant measured in the second temperature measurement step is lower than a predetermined target temperature.

And a second driving step of supplying an alternating current having a second frequency lower than the first frequency to the compressor when the temperature of the refrigerant measured in the second temperature measuring step is equal to or higher than the target temperature .

If the temperature measured in the second temperature measurement step and the temperature difference measured in the first temperature measurement step are equal to a preset reference value, An alternating current of one frequency can be supplied to the compressor.

If the temperature measured in the second temperature measurement step and the temperature difference measured in the first temperature measurement step are equal to a preset reference value, the garment processing apparatus operates in a normal condition (when the temperature rise rate of the refrigerant is higher than the target refrigerant And the temperature is in a state of conforming to the rate of increase of the temperature. That is, even when the temperature rise rate of the refrigerant for raising the temperature of the air supplied to the clothes to the temperature suitable for drying is equal to the reference temperature rise rate, even if the frequency of the alternating current supplied to the compressor is kept at the first frequency It can be seen that the temperature of the refrigerant can be raised to the target temperature within the time.

Meanwhile, when the temperature measured in the second temperature measuring step and the temperature difference measured in the first temperature measuring step are smaller than a predetermined reference value, the first adjusting step may be performed by adjusting the alternating current having a frequency greater than the first frequency, Can be supplied to the compressor.

If the temperature measured in the secondary temperature measuring step and the temperature difference measured in the primary temperature measuring step are smaller than a preset reference value, the clothes processing apparatus can be regarded as operating at a low temperature condition (lower temperature than the normal condition). That is, when the rate of temperature rise of the refrigerant is smaller than the rate of temperature rise under the normal condition, the first adjusting step increases the rotational speed of the compressor by supplying the alternating current having the frequency greater than the first frequency to the compressor.

As the rotational speed of the compressor increases, the moving speed of the refrigerant circulating between the evaporator and the condenser becomes faster than the normal condition. When the moving speed of the refrigerant increases, the speed of the refrigerant flowing into the evaporator increases. Will also increase. Through such a process, the rate of temperature rise of the refrigerant will have the same rate of increase as the rate of rise of the normal condition within a short time.

Meanwhile, if the temperature measured in the second temperature measurement step and the temperature difference measured in the first temperature measurement step are larger than a predetermined reference value, the first adjustment step may be performed at a frequency lower than the first frequency and higher than the second frequency Can be supplied to the compressor.

If the temperature measured in the secondary temperature measuring step and the temperature difference measured in the primary temperature measuring step are larger than a predetermined reference value, it can be considered that the clothes processing apparatus is operating at a high temperature condition (lower temperature than the normal condition). That is, the rate of increase of the temperature of the refrigerant is larger than that in the normal condition. In this case, the first adjusting step lowers the compressor rotational speed by supplying the alternating current having the frequency smaller than the first frequency to the compressor.

When the rotational speed of the compressor is reduced, the moving speed of the refrigerant circulating between the evaporator and the condenser is lower than the normal condition. When the moving speed of the refrigerant is lowered, the speed of the refrigerant flowing into the evaporator is decreased. The rate of temperature rise will also be low. Through such a process, the rate of temperature rise of the refrigerant will have the same rate of increase as the rate of rise of the normal condition within a short time.

The present invention is characterized in that when the temperature of the refrigerant measured in the second temperature measurement step is less than the target temperature, the temperature of the refrigerant discharged from the compressor when the predetermined second reference time elapses from the time when the second temperature measurement step is completed A third temperature measuring step of measuring a temperature of the third temperature; And a second adjustment step of adjusting a frequency supplied to the compressor based on a temperature difference between the temperature measured in the third temperature measurement step and the temperature measured in the second temperature measurement step.

If the temperature difference between the temperature measured in the third temperature measuring step and the temperature measured in the second temperature measuring step is smaller than a predetermined reference value, the secondary adjusting step is performed at a frequency set after the first adjusting step It is possible to supply an alternating current having a frequency increased by a predetermined reference frequency to the compressor.

If the temperature difference between the temperature measured in the third temperature measuring step and the temperature measured in the second temperature measuring step is smaller than a preset reference value, Which is smaller than the rate of increase. Accordingly, the second adjustment step further increases the frequency of the alternating current supplied to the compressor to further increase the temperature increase rate of the refrigerant.

If the temperature measured in the third temperature measurement step and the temperature difference measured in the second temperature measurement step are larger than a predetermined reference value, the secondary adjustment step may include: To the compressor. ≪ IMAGE >

If the temperature difference between the temperature measured in the third temperature measuring step and the temperature measured in the second temperature measuring step is larger than a preset reference value, . ≪ / RTI > Accordingly, the second adjusting step reduces the frequency of the alternating current supplied to the compressor to reduce the rate of temperature rise of the refrigerant.

If the temperature measured in the third temperature measurement step and the temperature difference measured in the second temperature measurement step are equal to a predetermined reference value, the secondary adjustment step may include: To the compressor.

When the temperature difference between the temperature measured in the third temperature measuring step and the temperature measured in the second temperature measuring step is equal to a preset reference value, the temperature increasing rate of the refrigerant is in accordance with the temperature increasing rate of the refrigerant under the normal condition . Accordingly, in this case, the second adjustment step continuously supplies the frequency adjusted through the first adjustment step to the compressor to raise the temperature of the refrigerant to the target temperature.

The present invention is characterized in that when the temperature of the refrigerant measured in the second temperature measurement step is equal to or higher than the target temperature or the temperature of the refrigerant measured in the third temperature measurement step is equal to or higher than the target temperature, And a second driving step of supplying an alternating current to the compressor.

The present invention provides a method of controlling a temperature of a compressor, comprising the steps of: supplying an AC current having a frequency greater than the first frequency to the compressor before performing the second temperature measurement step, when the temperature of the refrigerant measured in the first temperature measurement step is lower than a predetermined first temperature ; ≪ / RTI >

The present invention relates to an air conditioning apparatus, A circulation flow path for drawing out the air in the accommodating portion and re-supplying the air to the accommodating portion; An evaporator for exchanging heat with air flowing into the circulation channel to evaporate the refrigerant; A condenser for exchanging heat with air passing through the evaporator to condense the refrigerant; A compressor which pressurizes the refrigerant discharged from the evaporator to supply the refrigerant to the condenser, and controls a flow rate of the refrigerant through frequency adjustment of an alternating current; A temperature sensor for measuring the temperature of the refrigerant discharged from the compressor; And a controller for maintaining or changing the frequency of the alternating current supplied to the compressor based on the refrigerant temperature measured through the temperature sensor.

The controller may increase the frequency of the alternating current supplied to the compressor by a predetermined reference frequency if the temperature difference between at least two refrigerant temperatures measured through the temperature sensor is smaller than a predetermined reference value.

The controller may decrease the frequency of the alternating current supplied to the compressor by a predetermined reference frequency if the temperature difference between at least two refrigerant temperatures measured through the temperature sensor is greater than a preset reference value.

An evaporator for exchanging heat with the air flowing into the circulation channel to evaporate the refrigerant; a heat exchanger for exchanging heat with the air passing through the evaporator; And a compressor that pressurizes the refrigerant discharged from the evaporator and supplies the refrigerant to the condenser, the compressor controlling the flow rate of the refrigerant compressed through the frequency adjustment of the alternating current, the method comprising the steps of: The first driving step includes supplying an alternating current of a first frequency to the compressor. A first temperature measuring step of measuring a temperature of the refrigerant discharged from the compressor; A second temperature measurement step of measuring a temperature of the refrigerant discharged from the compressor when a predetermined first reference time elapses after completion of the first temperature measurement step; And controlling (controlling or changing) the first frequency based on a difference between a temperature measured at the second temperature measuring step and a temperature measured at the first temperature measuring step. A control method of a processing apparatus is provided.

Wherein when the difference between the temperature measured at the second temperature measuring step and the temperature measured at the first temperature measuring step is equal to a predetermined reference value, the step of controlling the first frequency comprises: And the step of continuing the step of supplying the water.

Wherein when the difference between the temperature measured in the second temperature measurement step and the temperature measured in the first temperature measurement step is different from the reference value, the step of controlling the first frequency comprises: a first adjustment step of changing the first frequency; .

If the difference between the temperature measured in the second temperature measuring step and the temperature measured in the first temperature measuring step is equal to the reference value and the temperature of the refrigerant measured in the second temperature measuring step is not less than a predetermined target temperature And a second driving step of supplying an alternating current of a second frequency set to be smaller than the first frequency to the compressor.

When the difference between the temperature measured in the second temperature measuring step and the temperature measured in the first temperature measuring step is equal to the reference value, the temperature raising rate of the refrigerant meets a predetermined condition. That is, this means that the clothes processing apparatus is operated under normal conditions.

On the other hand, the temperature of the refrigerant measured in the second temperature measurement step is higher than the predetermined target temperature, which means that the temperature of the air heated by the refrigerant can rise to a temperature suitable for clothes drying.

If the difference between the temperature measured at the second temperature measuring step and the temperature measured at the first temperature measuring step is smaller than the reference value, the first adjusting step adjusts the AC current of the frequency higher than the first frequency to the compressor Can supply.

When the difference between the temperature measured in the second temperature measuring step and the temperature measured in the first temperature measuring step is smaller than the reference value, it is determined that the clothes processing apparatus is operating in a low temperature condition (an environment having a temperature lower than room temperature) it means.

If the difference between the temperature measured in the second temperature measuring step and the temperature measured in the first temperature measuring step is larger than the reference value, the first adjusting step adjusts the alternating current having a frequency lower than the first frequency Alternating current having a frequency smaller than the second frequency) to the compressor.

If the difference between the temperature measured in the secondary temperature measuring step and the temperature measured in the primary temperature measuring step is larger than the reference value, it means that the clothes processing apparatus is operating in a high temperature condition (an environment having a temperature higher than room temperature) it means. Accordingly, the present invention performs the first adjustment step so that the rate of temperature rise of the refrigerant becomes equal to the rate of temperature rise under the normal condition.

The present invention may further include a third temperature measuring step of measuring a temperature of the refrigerant discharged from the compressor after completion of the first adjusting step.

If the difference between the temperature measured in the third temperature measurement step and the temperature measured in the second temperature measurement step is equal to the reference value, the alternating current of the changed frequency through the first adjustment step is continuously supplied to the compressor The method comprising the steps of:

If the difference between the temperature measured in the third temperature measuring step and the temperature measured in the second temperature measuring step is equal to the reference value and the temperature of the refrigerant measured in the third temperature measuring step is equal to or higher than the target temperature, The present invention may further include a second driving step of supplying an AC current of a second frequency set to be smaller than the first frequency to the compressor.

If the difference between the temperature measured in the third temperature measurement step and the temperature measured in the second temperature measurement step is smaller than the reference value, And a secondary adjustment step of supplying an alternating current to the compressor.

If the difference between the temperature measured in the third temperature measurement step and the temperature measured in the second temperature measurement step is greater than the reference value, And a second adjusting step of supplying a current to the compressor.

The present invention provides a method of controlling a temperature of a compressor, comprising the steps of: supplying an AC current having a frequency greater than the first frequency to the compressor before performing the second temperature measurement step, when the temperature of the refrigerant measured in the first temperature measurement step is lower than a predetermined first temperature ; ≪ / RTI >

The present invention is characterized in that the above-described adjustment step is repeatedly performed until the temperature of the refrigerant reaches the target temperature so that the rate of temperature rise of the refrigerant becomes equal to the rate of temperature rise under the normal condition. That is, the present invention can make the time at which the refrigerant temperature reaches the target temperature equal regardless of the temperature condition in which the clothes processing apparatus operates.

The present invention relates to an air conditioning apparatus, A circulation flow path for drawing out the air in the accommodating portion and re-supplying the air to the accommodating portion; An evaporator for exchanging heat with air flowing into the circulation channel to evaporate the refrigerant; A condenser for exchanging heat with air passing through the evaporator to condense the refrigerant; A compressor which pressurizes the refrigerant discharged from the evaporator to supply the refrigerant to the condenser, and controls a flow rate of the refrigerant through frequency adjustment of an alternating current; A temperature sensor for measuring the temperature of the refrigerant discharged from the compressor; And a control unit for maintaining or changing the frequency of the alternating current supplied to the compressor based on the refrigerant temperature measured through the temperature sensor.

The controller may increase the frequency of the alternating current supplied to the compressor by a predetermined reference frequency when the temperature difference between the two refrigerant temperatures measured with a time lag through the temperature sensor is smaller than a predetermined reference value.

The controller may decrease the frequency of the alternating current supplied to the compressor by a predetermined reference frequency if the temperature difference between the two refrigerant temperatures measured with the parallax through the temperature sensor is greater than a predetermined reference value.

The controller may maintain the frequency of the alternating current supplied to the compressor when the temperature difference between the two refrigerant temperatures measured with the parallax through the temperature sensor is equal to a predetermined reference value.

The present invention can provide an effect of providing a control method of a clothes processing apparatus capable of drying clothes in a constant drying time irrespective of ambient temperature conditions when drying the same amount of clothes.

Further, the present invention can provide an effect of providing a control method of a clothes processing apparatus capable of controlling a time at which a temperature of a refrigerant reaches a target temperature by actively controlling a flow rate of the refrigerant according to an ambient temperature condition of the clothes processing apparatus .

In addition, the present invention can provide a control method of a clothes processing apparatus capable of maintaining a constant time for a temperature of a refrigerant to rise to a predetermined temperature range, regardless of an ambient temperature condition.

In addition, the present invention can provide an effect of providing a control method of a clothes processing apparatus capable of maintaining a constant time required for the temperature of air supplied to clothes to reach a predetermined temperature range.

Further, the present invention can provide an effect of providing a control method of a clothes processing apparatus capable of shortening a drying time of a clothes processing apparatus operating under a low temperature condition.

Further, the present invention provides a control method of a clothes processing apparatus for stably controlling the heat exchange cycle by controlling the number of revolutions of the compressor (controlling the frequency of the alternating current supplied to the compressor) based on the temperature of the refrigerant discharged from the compressor Effect can be achieved.

Further, the present invention can provide an effect of providing a control method of a clothes processing apparatus that allows a temperature change of a refrigerant circulating under a high-temperature condition or a low-temperature condition to coincide with a temperature change of a refrigerant circulating under normal conditions within a short period of time have.

1 shows a clothes processing apparatus of the present invention.
Fig. 2 shows an example of a compressor provided in the present invention.
Fig. 3 shows an example of a control method of the clothes processing apparatus.
4 and 5 show another embodiment of the control method of the garment processing apparatus.
6 and 7 show another embodiment of the control method of the clothes processing apparatus.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It is to be understood that the present invention is not limited to the details of the embodiments described below, .

FIG. 1 illustrates a clothes processing apparatus 100 according to the present invention. The clothes processing apparatus 100 of the present invention includes a storage unit 1 for providing a space for accommodating clothes (object to be dried) A heat pump 3 for performing heat exchange with the air flowing into the circulating flow path; a temperature sensor (not shown) for measuring the temperature of the refrigerant, which is a working fluid of the heat pump 3 5).

The receiving portion 1 may be provided in any form as long as the object to be dried is accommodated.

The circulation flow path 2 is means for re-supplying the air discharged from the accommodation portion 1 to the outside of the accommodation portion 1 to the accommodation portion 1 and the fan 4 is provided inside the circulation flow path 2 So that the air in the accommodating portion 1 is circulated through the circulating flow path 2. [

The heat pump 3 is an evaporator 31, a compressor 35, a condenser 33, an expansion unit 37, and a refrigerant pipe 39 as dehumidifying means for dehumidifying air in the circulation channel 2, As shown in FIG.

The refrigerant pipe 39 is a means for providing a flow path through which the refrigerant is circulated. The refrigerant pipe 39 is connected to the evaporator 31 and the compressor 35, the compressor 35 and the condenser 33, the condenser 33, (37), and the expansion unit (37) and the evaporator (31).

The evaporator 31 is a means for exchanging heat between the refrigerant and the air introduced into the circulation flow passage 2. The air passing through the evaporator 31 is cooled and the refrigerant passing through the evaporator 31 absorbs heat from the air Evaporated. Therefore, when the air passes through the evaporator 31, the moisture contained in the air is removed.

The compressor 35 is a means for pressurizing the refrigerant so that the refrigerant can be circulated along the refrigerant pipe 39 and the compressor 35 is provided between the evaporator 31 and the condenser 33. Accordingly, the compressor 35 is a means for compressing the refrigerant discharged from the evaporator 31 through the refrigerant pipe 39 and moving the refrigerant to the condenser 33.

In this case, the temperature sensor 5 provided for measuring the temperature of the refrigerant is provided to measure the temperature of the refrigerant discharged from the compressor 35.

The temperature sensor 5 included in the present invention may be provided to estimate the temperature of the refrigerant by measuring the temperature of the refrigerant pipe 39, As shown in FIG.

The temperature sensor 5 provided in the present invention is adapted to measure the temperature of the refrigerant discharged from the compressor 35 because the temperature of the refrigerant supplied to the condenser 33 is controlled by the hot wind This is because it is most advantageous in temperature control.

Since the air flowing into the circulating flow path 2 is heated while passing through the condenser 33, the temperature of the air supplied to the receiving portion 1 is directly affected by the temperature of the refrigerant supplied to the condenser 33. Therefore, if the temperature sensor 5 is provided to measure the temperature of the refrigerant discharged from the compressor 35, the temperature sensor 5 is provided to measure the temperature of the refrigerant flowing into the compressor 35, The temperature of the air supplied to the accommodating portion 1 can be more easily controlled than in the case where the temperature of the refrigerant is measured.

The condenser 33 is a means for exchanging heat between the air (dehumidified air) passing through the evaporator 31 and the refrigerant. The air passing through the condenser 33 is heated and the refrigerant passing through the condenser 33 is heated And is condensed.

The expansion portion 37 is means for lowering the pressure of the refrigerant moving from the condenser 33 to the evaporator 31 through the refrigerant pipe 39.

As shown in FIG. 2, the compressor 35 may be classified into various types according to a method of compressing the refrigerant. However, the compressor 35 basically includes a housing 351 for providing a refrigerant storage space, Or a reciprocating period of the pressing portion 353b that linearly reciprocates, or a pressing portion (which discharges the refrigerant to the outside of the housing) that compresses the refrigerant by linear reciprocating motion, a rotational speed of the pressing portion 353a that rotates, (355, e.g., a motor).

When the pressing portion 353a is provided to rotate, the pressing portion 353a is provided to compress the refrigerant by reducing the volume of the refrigerant flowing into the housing 351 and discharging the refrigerant to the outside of the housing 351. [ Therefore, the flow rate of the refrigerant discharged from the housing 351 is controlled by the number of revolutions of the driving unit 355.

The pressing portion 353b and the driving portion 355 may include means 357 for converting the rotational motion of the driving portion into a linear reciprocating motion of the pressing portion 357 when the pressing portion 353b is provided to perform a linear reciprocating motion, Conversion section). Accordingly, the compressor 35 equipped with the pushing portion 353b for linear reciprocating motion can also control the flow rate of the refrigerant through the control of the rotation speed of the driving portion 355.

The flow rate of the refrigerant discharged from the compressor 35 can be controlled by controlling the frequency of the alternating current supplied to the driving unit 355 provided in the compressor, It can be controlled through the frequency of the current.

When a user inputs a control command to the clothes processing apparatus 100, a control unit (not shown) operates the fan 4 with the above-described structure. When the fan 4 is operated, the air inside the accommodation portion 1 flows into the circulation flow passage 2 and is supplied to the accommodation portion 1 after passing through the evaporator 31 and the condenser 33.

The control unit (not shown) can control the frequency of the alternating current supplied to the compressor 35 in the form as shown in FIG. 3 while the air inside the accommodating unit 1 circulates.

The control unit (not shown) includes a first step S1 of supplying an AC current of a first frequency to the compressor 35 to operate the compressor 35, a temperature of the refrigerant discharged from the compressor 35 (S2) for lowering the frequency of the alternating current supplied to the compressor (35) to a second frequency (smaller than the first frequency) when the temperature of the compressor (35) The compressor 35 can be controlled through the third step S3.

In order to efficiently dry a drying object such as clothing, the temperature of the refrigerant supplied to the condenser 33 (the temperature of the refrigerant discharged from the compressor) must be equal to or higher than a predetermined temperature (target temperature) to heat the air passing through the condenser 33 can do.

Therefore, if the flow rate of the refrigerant is increased by increasing the frequency of the AC power source (the number of revolutions of the driving unit) in the first step S1, the time t1 when the temperature of the refrigerant supplied to the condenser 33 reaches the target temperature Time) can be shortened.

That is, the first step (S1) is to maintain a high frequency (first frequency) of the alternating current supplied to the compressor in order to shorten the time for the temperature of the refrigerant to reach the predetermined target temperature, (Second frequency) of the alternating current supplied to the compressor in order to maintain the temperature of the refrigerant suitable for clothes drying, and the second step (S2) The frequency of the alternating current supplied to the compressor is lowered from the first frequency to the second frequency so as to minimize the noise or the load of the compressor (35).

However, the method of operating the compressor 35 in the above-described manner has a disadvantage that the drying time varies depending on the ambient temperature of the clothes processing apparatus 100.

First, a case where the ambient temperature of the clothes processing apparatus 100 is lower than a normal condition will be described.

The amount of heat absorbed by the evaporator 31 is small because the temperature of the air flowing into the circulating flow path 2 is low when the clothes processing apparatus 100 is operated at a low temperature condition (cold season or cold fat). Therefore, when the ambient temperature of the clothes processing apparatus is low, the time when the temperature of the refrigerant discharged from the compressor 35 reaches the target temperature will be later than the time t1 when the refrigerant temperature reaches the target temperature under normal conditions (G1 ).

If the time point at which the temperature of the refrigerant discharged from the compressor reaches the target temperature is delayed, not only the drying time can be increased but also the drying object can not be sufficiently dried if the drying end time t3 is determined .

On the other hand, if the ambient temperature of the clothes processing apparatus 100 is higher than the normal condition (in a high temperature condition, when the clothes processing apparatus is operated in hot season or in hot fats), the temperature of the air flowing into the circulation channel 2 is high Since the amount of heat absorbed by the evaporator increases, the point of time when the temperature of the refrigerant discharged from the compressor reaches the target temperature will be faster than the time t1 when the refrigerant temperature reaches the target temperature under normal conditions (G2).

If the temperature of the refrigerant discharged from the compressor increases to the target temperature, the garbage disposal device having the drying end time t3 may waste energy, and in some cases, the progress time of the third step S3 The drying object may not be sufficiently dried.

That is, the control method shown in FIG. 3 has a problem that it is difficult to keep the drying time constant according to the temperature condition of the surrounding environment in which the clothes processing apparatus is located.

In order to solve such a problem, the present invention can perform a control method as shown in FIG.

4 controls the frequency of the alternating current supplied to the compressor 35 based on the temperature of the refrigerant discharged from the compressor 35 (by controlling the frequency of the alternating current supplied to the driving part of the compressor) The point of time when the temperature of the refrigerant discharged from the compressor 35 reaches the target temperature is maintained constant irrespective of the ambient temperature of the processing apparatus 100 or the air temperature inside the accommodating portion.

Means that the time point at which the temperature of the refrigerant discharged from the compressor 35 reaches the target temperature is maintained constantly means that the time point at which the refrigerant discharged from the compressor reaches the target temperature is a predetermined time deviation And the like.

The control method of the present invention proceeds to a first driving step (S10) of supplying an alternating current of a predetermined first frequency to the compressor (35) when a command for executing a drying course is input to the clothes processing apparatus (100).

The means for supplying the alternating current of the first frequency to the compressor 35 in the first driving step S10 supplies the alternating current of the first frequency to the driving unit 355 of the compressor 35, .

When the first driving step (S10) is started, the control method of the present invention proceeds with a first temperature measurement step (S20) for measuring the temperature of the refrigerant discharged from the compressor (35).

The first temperature measurement step S20 is a step of measuring the temperature of the refrigerant discharged from the compressor 35 through the temperature sensor 5 and may be performed immediately after the start of the first drive step S10, It may proceed after a certain time has elapsed since the start of step S10.

When the first temperature measurement step S20 is completed, the present invention is characterized in that the temperature of the refrigerant discharged from the compressor 35 when the predetermined first reference time elapses after the completion of the first temperature measurement step S20 (S30, n = 2). The secondary temperature measurement step (S30) also proceeds through the temperature sensor (5).

On the other hand, when the temperature of the refrigerant is measured in the second temperature measurement step S30, the present invention is characterized in that the temperature of the refrigerant measured in the second temperature measurement step S30 is set to a predetermined target temperature (e.g., 67 to 71 degrees Celsius) (S40). ≪ / RTI >

If the temperature of the refrigerant measured in the second temperature measurement step S30 is equal to or higher than the target temperature, the present invention reduces the frequency of the alternating current supplied to the compressor 35 to the second frequency (S70) A second driving step (S80) for continuously supplying the alternating current to the compressor (35) is performed.

However, if the temperature measured in the secondary temperature measurement step S30 is smaller than the target temperature, the present invention proceeds to an adjustment step (S50, first adjustment step) of adjusting the frequency of the alternating current supplied to the compressor.

The first adjustment step S50 may include adjusting the frequency of the alternating current supplied to the compressor based on the temperature difference between the refrigerant temperature measured in the second temperature measuring step S30 and the refrigerant temperature measured in the first temperature measuring step S20 .

The first adjustment step S50 includes a step S51 of comparing a value obtained by subtracting the temperature of the refrigerant measured in the first temperature measurement step from the refrigerant temperature measured in the second temperature measurement step S30 with a preset reference value .

If the value obtained by subtracting the temperature of the refrigerant measured in the first temperature measuring step from the refrigerant temperature measured in the second temperature measuring step S30 is equal to the reference value, the controller (not shown) It is determined that the device 100 is in a normal condition that is hardly affected by the temperature of the area where the device 100 is located and the frequency of the alternating current supplied to the compressor is maintained (continuously supplying the alternating current of the first frequency to the compressor).

However, if the value obtained by subtracting the temperature of the refrigerant measured in the first temperature measuring step from the refrigerant temperature measured in the second temperature measuring step S30 is greater than the reference value, the controller (not shown) (S53) of decreasing the frequency of the alternating current supplied to the compressor (35) based on the state of being exposed to the high temperature condition.

The step of lowering the frequency of the alternating current supplied to the compressor 35 may be provided to supply the alternating current of the frequency lower than the first frequency by a predetermined reference frequency to the compressor 35. [

However, the frequency of the alternating-current power supplied to the compressor 35 in the step S53 of lowering the frequency of the alternating current (frequency lower than the first frequency by a frequency lower than the first frequency) should be set lower than the first frequency and higher than the second frequency, A reference frequency of 2 Hz may be an example.

When the clothing processing apparatus 100 is exposed to a high temperature condition, the time when the temperature of the refrigerant discharged from the compressor 35 reaches the target temperature becomes faster than the time when the refrigerant temperature reaches the target temperature under the normal condition. have.

Accordingly, the step S53 of lowering the frequency of the alternating current supplied to the compressor reduces the flow rate of the refrigerant to delay the time t11 (Fig. 5) when the temperature of the refrigerant discharged from the compressor reaches the target temperature, (T1, Fig. 5) at which the temperature reaches the target temperature.

On the other hand, if the value obtained by subtracting the temperature of the refrigerant measured in the first temperature measuring step from the refrigerant temperature measured in the second temperature measuring step S30 is smaller than a preset reference value, the controller (not shown) (S55) of increasing the frequency of the alternating current supplied to the compressor (35).

The step S55 of raising the frequency of the alternating current supplied to the compressor may be provided to supply the alternating current of the frequency higher than the first frequency by the reference frequency (for example, 2 Hz) to the compressor 35.

When the clothing processing apparatus 100 is exposed to the low temperature condition, the time when the temperature of the refrigerant discharged from the compressor reaches the target temperature is slower than the time when the refrigerant temperature reaches the target temperature under the normal condition.

Accordingly, the step of increasing the frequency of the alternating current supplied to the compressor (step S55) increases the flow rate of the refrigerant so that the temperature of the refrigerant discharged from the compressor reaches the target temperature (t12, Fig. 5) (T1, Fig. 5) at which the refrigerant temperature reaches the target temperature.

In order to more easily control the time when the temperature of the refrigerant discharged from the compressor reaches the target temperature irrespective of the ambient temperature of the clothes processing apparatus 100, May be repeatedly performed until the temperature of the exhaust gas reaches the target temperature.

That is, the control method of the present invention may further perform a third temperature measurement step (S30, n = 3) for measuring the temperature of the refrigerant discharged from the compressor 35 after completion of the first adjustment step (S50).

It is preferable that the third temperature measurement step (S30, n = 3) is performed when a predetermined second reference time has elapsed (S60) from the completion of the second temperature measurement step (S30, n = 2).

If the temperature of the refrigerant measured in the third temperature measurement step (S30, n = 3) does not reach the target temperature, the present invention performs the above-described adjustment step (S50, second adjustment step) again.

The second adjustment step is different from the first adjustment step in that the temperature difference between the refrigerant temperature measured in the third temperature measurement step (S30, n = 3) and the refrigerant temperature measured in the second temperature measurement step (S30, n = 2) To the reference value.

If the temperature difference between the refrigerant temperature measured in the third temperature measurement step (S30, n = 3) and the refrigerant temperature measured in the second temperature measurement step (S30, n = 2) is equal to the reference value, The step of adjusting the difference will maintain the frequency of the alternating current being supplied to the compressor (the frequency, the first frequency or the adjusted frequency).

However, if the temperature difference between the refrigerant temperature measured in the third temperature measurement step (S30, n = 3) and the refrigerant temperature measured in the second temperature measurement step (S30, n = 2) is greater than the reference value, The second adjusting step lowers the frequency of the alternating current supplied to the compressor (the frequency adjusted through the first adjustment step, the adjusted frequency or the first frequency) by the reference frequency (S53).

If the temperature difference between the refrigerant temperature measured in the third temperature measurement step (S30, n = 3) and the refrigerant temperature measured in the second temperature measurement step (S30, n = 2) is smaller than the reference value, The step of adjusting the difference will increase the frequency of the alternating current supplied to the compressor (the frequency after the first adjustment step) by the reference frequency (S55).

On the other hand, if the temperature of the refrigerant measured in the third temperature measurement step S30 (n = 3) reaches the target temperature (S40), the present invention reduces the frequency of the alternating current supplied to the compressor to the second frequency (S70) And a second driving step (S80) for continuously supplying the alternating current of the second frequency to the compressor (35).

The step of lowering the frequency of the alternating current to the second frequency (S70) is a step of lowering the current frequency of the alternating current supplied to the compressor (frequency passed through the first adjusting step) to the second frequency. In this case, the present invention can reduce the current frequency of the alternating current supplied to the compressor 35 by a certain amount of time, so that the frequency of the alternating current supplied to the compressor 35 becomes the second frequency.

That is, the control unit (not shown) may reduce the frequency of the AC current adjusted through the first adjustment step S50 by 1 Hz per 4 minutes so that the frequency of the AC current supplied to the compressor 35 becomes the second frequency . So as to prevent an excessive load from being generated in the compressor (35).

During the second driving step S80, the control method of the present invention periodically determines whether the target time set in the drying course has elapsed (S90). When the target time has elapsed, the present invention terminates the drying course.

Therefore, the present invention repeatedly executes the above-described adjustment step (S50) on the basis of the temperature increase value of the refrigerant discharged from the compressor (35) so that the temperature of the refrigerant does not reach the target temperature Or the time point when the temperature of the refrigerant reaches the target temperature can be kept within a constant deviation. Accordingly, the present invention can maintain the same or similar drying time regardless of the ambient temperature of the clothes processing apparatus 100 when the cloths are the same.

Meanwhile, the present invention determines whether or not the temperature of the refrigerant measured in the first temperature measuring step (S20) is lower than a predetermined first temperature (lower than the target temperature) (S21) and determines the frequency of the AC power supplied to the compressor (Step S23).

The fact that the temperature of the refrigerant measured first after operating the compressor 35 has not reached the predetermined first temperature can be regarded as the case where the clothes processing apparatus 100 is operating in a low temperature condition.

Accordingly, when the compressor 35 is operated until the first adjustment step S50 after increasing the flow rate of the refrigerant, there will be a more advantageous effect in controlling the drying time of the clothes processing apparatus 100 operating in a low temperature environment.

A garment processing apparatus equipped with a heat pump is designed on the basis of operating at normal temperature conditions (normal condition, 18 to 25 degrees Celsius). This is because the efficiency of the compressor is high at room temperature, which is advantageous for drying clothes. On the other hand, the temperature of the air that can effectively be dried without damaging clothes is 60-70 degrees Celsius. As described above, the temperature of the air supplied to the garment includes a method of directly measuring the temperature of the air supplied to the accommodating portion in which the clothes are stored and a method of estimating the temperature of the air by measuring the temperature of the refrigerant. In the latter case, the temperature of the refrigerant can be measured at the outlet side of the compressor, the outlet side of the evaporator, the outlet side of the condenser, and the like.

On the other hand, the temperatures of the refrigerant measured at the outlet side of the compressor, the outlet side of the evaporator, and the outlet side of the condenser have different physical meanings.

First, the temperature of the refrigerant measured at the compressor outlet side represents the reliability of the compressor provided in the heat pump, which can represent the reliability of the whole clothes processing apparatus system. On the other hand, the temperature of the refrigerant measured at the outlet of the evaporator or at the outlet of the condenser is mainly used to determine the superheating degree and supercooling degree of the system.

The temperature sensor 5 (see FIG. 1) for measuring the temperature of the air supplied to the accommodating portion of the present invention controls the temperature of the refrigerant at the outlet of the compressor And the like.

When the drying course entered by the user is started, the refrigerant starts circulating by the compressor. In the initial stage of the drying cycle, the system is not preheated (the energy supplied to the heat pump can not be used to raise the temperature of the refrigerant, The temperature of the refrigerant at the outlet side of the compressor is gradually increased with the passage of time.

The temperature of the refrigerant at the outlet side of the compressor is measured and then the temperature of the air at a temperature suitable for drying can be supplied, the present invention gradually reduces the number of rotations of the compressor. The number of revolutions of the compressor is gradually reduced from the time when the refrigerant temperature at the outlet side of the compressor is about 69 degrees.

The reason for reducing the number of revolutions of the compressor after a specific point is to prevent overload of the compressor and to prevent the temperature of the air from rising more than necessary by controlling the amount of refrigerant.

On the other hand, when the clothes processing apparatus is operated at a low temperature condition, the temperature around the compressor will also be lower than the normal temperature. Therefore, the system preheating time is longer than the room temperature condition, which means that the time taken for the air temperature to rise to a temperature suitable for drying becomes longer. That is, since it takes more time to raise the temperature of the air, the drying time can be delayed accordingly.

On the other hand, if the system ambient temperature is higher than normal temperature (high temperature condition), the temperature around the compressor will be higher than normal temperature. Therefore, when the drying course starts, the temperature of the compressor rises sharply, but it may be difficult to see that the temperature of the air rises by the rate of temperature increase of the compressor.

That is, even if the temperature of the refrigerant rises quickly to a predetermined temperature, the temperature of the air supplied to the receiving portion may not rise by a temperature suitable for drying. This phenomenon is caused by indirectly determining the temperature of the air flowing into the drum through the temperature of the refrigerant.

Therefore, even if the clothes processing apparatus operates at a high temperature and the temperature of the refrigerant reaches the target temperature, the temperature of the air supplied to the storage portion is lower than the temperature suitable for drying. .

The present invention provides a control method of a clothes processing apparatus capable of drying clothes within a constant drying time irrespective of ambient temperature conditions of the clothes processing apparatus. That is, according to the present invention, it is possible to prevent the delay of the drying time by making the time when air at a temperature suitable for clothes drying be supplied to the receiving portion.

Fig. 6 shows another embodiment of the control method of the present invention.

6, the control method of FIG. 6 also includes a first driving step (S10) of supplying an alternating current of a predetermined first frequency to the compressor (35), a first driving step (S20) for measuring the temperature of the refrigerant discharged from the first heat exchanger (20).

When the first temperature measurement step S20 is completed, the present invention may include a second temperature measurement step S30, wherein n = 1, 2, 3, 4, 2), a step (S31) of judging whether or not a value obtained by subtracting the temperature of the refrigerant measured in the first temperature measuring step from the refrigerant temperature measured in the second temperature measuring step (S30) is equal to a preset reference value .

The present invention proceeds to steps S33 and S50 of controlling the first frequency based on a difference between a temperature measured in the second temperature measuring step and a temperature measured in the first temperature measuring step, Is a step of maintaining or changing the frequency of the alternating current supplied to the compressor according to predetermined conditions.

If the value obtained by subtracting the temperature measured in the first temperature measurement step from the temperature measured through the second temperature measurement step (S30) is equal to the reference value, the step of controlling the first frequency is provided to the compressor It is determined whether or not the temperature of the refrigerant measured in the second temperature measurement step reaches the preset target temperature (S35) while maintaining the frequency (first frequency) of the alternating current (S33). The reference value may be set as data relating to a temperature increase amount or a temperature increase rate of the refrigerant.

The difference between the temperature measured in the second temperature measurement step and the temperature measured in the first temperature measurement step is equal to the reference value means that the rate of temperature rise of the refrigerant meets predetermined conditions. That is, it means that the clothes processing apparatus is operating under the normal condition.

Also, the fact that the temperature of the refrigerant measured in the second temperature measurement step reaches the predetermined target temperature means that the temperature of the air heated through the heat exchange with the refrigerant has risen to a temperature suitable for clothes drying.

If the temperature of the refrigerant measured in the second temperature measurement step S30 is equal to or higher than the target temperature, the present invention reduces the frequency of the alternating current supplied to the compressor 35 to the second frequency (S70) And proceeds to a second driving step (S80) for continuously supplying the electric current to the compressor (35).

During the second driving step S80, the control method of the present invention periodically determines whether the target time set in the drying course has elapsed (S90). When the target time has elapsed, the present invention terminates the drying course.

However, if the value obtained by subtracting the temperature of the refrigerant measured in the first temperature measurement step from the refrigerant temperature measured in the second temperature measurement step S30 is not equal to the reference value, An adjustment step (S50, first adjustment step) for changing the frequency of the supplied alternating current is performed.

If the value obtained by subtracting the temperature of the refrigerant measured in the first temperature measurement step from the refrigerant temperature measured in the second temperature measurement step (S30) is greater than the reference value, the first adjustment step adjusts the flow rate of the AC supplied to the compressor (S53) of lowering the frequency of the current is executed.

The step of lowering the frequency of the alternating current supplied to the compressor 35 (S53) is a step of supplying the alternating current of the frequency lower than the first frequency by a preset reference frequency to the compressor (35). In other words. The step S53 of lowering the frequency of the alternating current supplied to the compressor 35 may include supplying an alternating current having a frequency lower than the first frequency and higher than the second frequency to the compressor.

The fact that the value obtained by subtracting the temperature measured in the first temperature measurement step from the temperature measured in the second temperature measurement step is larger than the reference value means that the clothes processing apparatus is operating under the high temperature condition.

The temperature rise rate of the coolant at the high temperature condition is larger than the temperature rise rate of the coolant at the normal condition and the time at which the coolant reaches the target temperature becomes shorter than the normal temperature condition if the coolant temperature rise rate is large. Accordingly, step S53 of lowering the frequency of the alternating current supplied to the compressor can be regarded as means for delaying the time at which the refrigerant reaches the target temperature.

On the other hand, if the value obtained by subtracting the temperature of the refrigerant measured in the first temperature measurement step from the refrigerant temperature measured in the second temperature measurement step S30 is smaller than the reference value, the first adjustment step is supplied to the compressor 35 (Step S55) of increasing the frequency of the alternating current to be applied.

The step S55 of raising the frequency of the alternating current supplied to the compressor 35 may be provided to supply the alternating current having the frequency higher than the first frequency to the compressor 35 by the reference frequency.

The fact that the value obtained by subtracting the temperature measured in the first temperature measurement step from the temperature measured in the second temperature measurement step is smaller than the reference value means that the clothes processing apparatus is operating under a low temperature condition.

The temperature rise rate of the coolant under the low temperature condition is smaller than the temperature rise rate of the coolant under the normal condition and the time for the coolant to reach the target temperature becomes longer under the normal condition if the coolant temperature rise rate is small. Therefore, the step of increasing the frequency of the alternating current supplied to the compressor (S55) can be regarded as a means for shortening the time for the refrigerant to reach the target temperature.

When the first adjustment step S50 is completed, the control method of the present invention proceeds to a third temperature measurement step S30 (n = 3) for measuring the temperature of the refrigerant discharged from the compressor 35. [ It is preferable that the third temperature measurement step (S30, n = 3) is performed when a predetermined second reference time has elapsed (S60) from the completion of the second temperature measurement step (S30, n = 2).

In the third temperature measurement step S30 (n = 3), the value obtained by subtracting the temperature measured in the first temperature measurement step from the temperature measured in the second temperature measurement step S30 is equal to the reference value, The process also proceeds if it is determined that the measured temperature in step S30 has not reached the target temperature (S35).

When the temperature of the refrigerant discharged from the compressor is measured through the third temperature measurement step (S30, n = 3), the control method of the present invention controls the temperature measured in the third temperature measurement step and the temperature measured in the second temperature measurement step (S31) of determining whether or not the difference between the reference value and the difference is equal to the reference value.

When the difference between the temperature measured in the third temperature measuring step and the temperature measured in the second temperature measuring step is equal to the reference value, the present invention determines whether the temperature of the refrigerant measured in the third temperature measuring step has reached the target temperature S35), the frequency of the alternating current supplied to the compressor 35 is maintained at the second frequency (S70, S80). In the control method of the present invention during the second driving step (S80), when the target time set in the drying course has elapsed (S90), the present invention ends the drying course.

However, if the difference between the temperature measured in the third temperature measurement step and the temperature measured in the second temperature measurement step is different from the reference value, the present invention proceeds again in the adjustment step (S50, second adjustment step).

If the difference between the temperature measured in the third temperature measurement step (S30, n = 3) and the temperature measured in the second temperature measurement step (S30, n = 2) is greater than the reference value, S50 decrease the frequency of the AC current supplied to the compressor (the frequency adjusted through the first frequency or the first tuning step) by the reference frequency (S53).

If the difference between the temperature measured in the third temperature measurement step (S30, n = 3) and the temperature measured in the second temperature measurement step (S30, n = 2) is smaller than the reference value, (S50), the frequency of the alternating current supplied to the compressor (the frequency adjusted through the first frequency or the first tuning step) will be increased by the reference frequency (S55).

The adjusting step (S50) of adjusting the frequency of the alternating current supplied to the compressor is repeated until the difference between the two refrigerant temperatures measured with a time difference is equal to the reference value (S31). Therefore, if the value obtained by subtracting the temperature of the refrigerant measured in the third temperature measurement step from the temperature of the refrigerant measured after the completion of the second adjustment step (S50) is different from the reference value, the present invention performs the third adjustment step .

However, if the value obtained by subtracting the temperature of the refrigerant measured in the third temperature measurement step from the temperature of the refrigerant measured after completion of the second adjustment step (S50) is equal to the reference value, and the second adjustment step (S50) When the measured temperature of the refrigerant reaches the target temperature (S35), the present invention supplies the AC current of the second frequency to the compressor (S70, S80) and ends the drying course according to a certain condition (S90) Will be.

The present invention can provide a control method of a clothes processing apparatus for causing a temperature change of a refrigerant circulating under a high temperature condition or a low temperature condition to follow a temperature change of a refrigerant circulating under normal conditions within a short time.

FIG. 7 is a view schematically showing a temperature change of the refrigerant when the compressor is controlled through the above-described process.

Whether the clothes processing apparatus is in a normal condition, a low temperature condition or a high temperature condition, the present invention supplies an alternating current of the same frequency (first frequency) to the compressor at the beginning of operation of the clothes processing apparatus.

If the clothes processing apparatus operates under normal conditions, the present invention will continuously supply the alternating current of the first frequency to the compressor until the temperature of the refrigerant reaches the target temperature (t1) The supplied frequency is equal to R1, and the temperature of the refrigerant will change as L1. When the temperature of the refrigerant reaches the target temperature (t1), the present invention lowers the temperature of the refrigerant to the second frequency (t2) and operates the clothes processing apparatus until the operating time of the clothes processing apparatus reaches the target time.

On the other hand, if the clothes processing apparatus is operated at a low temperature condition, the temperature increase amount of the refrigerant (the difference in temperature between the two refrigerants measured with a time difference of the first reference time) will be smaller than the temperature increase amount under the normal condition.

In this case, the present invention carries out at least one adjustment step (increase the frequency of the alternating current supplied to the compressor (R3)) until the temperature of the two refrigerants measured at the time difference reaches the reference value, The invention makes it possible for a change in the refrigerant temperature circulating between the evaporator and the condenser at low temperature conditions to follow the change in temperature of the refrigerant operating under normal conditions.

Therefore, the present invention can make the time when the temperature of the refrigerant reaches the target temperature under the low temperature condition to be equal to the time (t1) when the temperature of the refrigerant reaches the target temperature under the normal condition.

On the other hand, when the time when the temperature of the refrigerant reaches the target temperature under the low temperature condition is equal to the time (t1) when the temperature of the refrigerant reaches the target temperature under the normal condition, the frequency of the alternating current supplied to the compressor under the low- May be higher than the frequency of the alternating current supplied to the compressor.

Therefore, the time t23 required for lowering the frequency of the alternating current supplied to the compressor to the second frequency at the low temperature condition may be longer than the time t2 for lowering the temperature of the refrigerant to the second frequency under the normal condition.

To match the times t2 and t23, the frequency reduction rate under the low temperature condition may be set to be larger than the frequency reduction rate under the normal condition. In this case, the time required for the drying course under the low-temperature condition and the time required for the drying course under the normal condition can be matched with each other, but the compressor may generate noise or vibration.

If the clothes processing apparatus is operated at a high temperature condition, the temperature increase amount of the refrigerant (the difference in temperature between the two refrigerants measured with a time difference of the first reference time) will be larger than the temperature increase amount under the normal condition. In this case as well, the present invention proceeds at least one adjustment step until the temperature of the two refrigerants measured at the time difference reaches the reference value.

That is, according to the present invention, the frequency of the alternating current supplied to the compressor is reduced (R2) so that the temperature change of the refrigerant circulating between the evaporator and the condenser at high temperature conditions can follow the change in temperature of the refrigerant operating under normal conditions. Therefore, the present invention makes it possible to make the time when the temperature of the refrigerant reaches the target temperature under the high temperature condition equal to the time t1 when the temperature of the refrigerant reaches the target temperature under the normal condition.

On the other hand, when the time when the temperature of the refrigerant reaches the target temperature at the high temperature condition is equal to the time (t1) at which the temperature of the refrigerant reaches the target temperature under the normal condition, the frequency of the alternating current supplied to the compressor at the high temperature condition, May be higher than the frequency of the alternating current supplied to the compressor.

Therefore, the time (t21) taken to lower the frequency of the alternating current supplied to the compressor at the high temperature condition to the second frequency will be shorter than the time (t2) at which the temperature of the refrigerant is lowered to the second frequency under normal conditions.

Therefore, the drying course under the high temperature condition may take a shorter time than the drying course under the normal condition. However, in order to make the progress times of the two drying courses equal to each other (to match the times t2 and t21), the frequency reduction rate under the high temperature condition may be set smaller than the frequency reduction rate under the normal condition.

The present invention may be embodied in various forms without departing from the scope of the invention. Accordingly, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

1: accommodating portion 2: circulating flow path 3: heat pump
4: Fan 5: Temperature sensor

Claims (16)

An evaporator for exchanging heat with the air flowing into the circulating flow channel to evaporate the refrigerant, a heat exchanger for exchanging heat with the air passing through the evaporator, And a compressor for controlling the flow rate of the refrigerant compressed by adjusting the frequency of the alternating current by supplying the refrigerant discharged from the evaporator to the condenser, the method comprising the steps of:
A first driving step of supplying an alternating current of a first frequency to the compressor;
A first temperature measuring step of measuring a temperature of the refrigerant discharged from the compressor;
A second temperature measurement step of measuring a temperature of the refrigerant discharged from the compressor when a predetermined first reference time elapses after completion of the first temperature measurement step;
And controlling the first frequency based on a difference between a temperature measured in the second temperature measurement step and a temperature measured in the first temperature measurement step. The method according to claim 1,
Wherein when the difference between the temperature measured at the second temperature measuring step and the temperature measured at the first temperature measuring step is equal to a predetermined reference value, the step of controlling the first frequency comprises: The method comprising the steps of: (a) continuously supplying the laundry to the clothes processing apparatus; 3. The method of claim 2,
And a second driving step of supplying an alternating current of a second frequency set to be smaller than the first frequency to the compressor when the temperature of the refrigerant measured in the second temperature measuring step is equal to or higher than a predetermined target temperature Of the clothes processing apparatus. The method according to claim 1,
Wherein when the difference between the temperature measured in the second temperature measurement step and the temperature measured in the first temperature measurement step is different from the reference value, the step of controlling the first frequency comprises: a first adjustment step of changing the first frequency; And the control unit advances the control unit to the control unit. 5. The method of claim 4,
If the difference between the temperature measured at the second temperature measuring step and the temperature measured at the first temperature measuring step is smaller than the reference value, the first adjusting step adjusts the AC current of the frequency higher than the first frequency to the compressor And a control unit for controlling the clothes processing apparatus. 5. The method of claim 4,
Wherein when the difference between the temperature measured in the second temperature measuring step and the temperature measured in the first temperature measuring step is larger than the reference value, the first adjusting step supplies an alternating current having a frequency lower than the first frequency to the compressor And a control unit for controlling the clothes processing apparatus. Item 4 to 6 ≪ RTI ID = 0.0 >
And measuring a temperature of the refrigerant discharged from the compressor after completing the first adjustment step. 8. The method of claim 7,
If the difference between the temperature measured in the third temperature measuring step and the temperature measured in the second temperature measuring step is equal to the reference value, continuously supplying the alternating current of the changed frequency through the first adjusting step to the compressor Wherein the step of controlling the clothes processing apparatus further comprises: 9. The method of claim 8,
And a second driving step of supplying an alternating current of a second frequency, which is set to be smaller than the first frequency, to the compressor when the temperature of the refrigerant measured in the third temperature measuring step is equal to or higher than the target temperature A method of controlling a garment processing apparatus. 8. The method of claim 7,
If the difference between the temperature measured in the third temperature measuring step and the temperature measured in the second temperature measuring step is smaller than the reference value, the alternating current having a frequency greater than the alternating current of the frequency adjusted through the first adjusting step And a second adjusting step of supplying the compressed air to the compressor. 8. The method of claim 7,
Wherein when the difference between the temperature measured in the third temperature measuring step and the temperature measured in the second temperature measuring step is larger than the reference value, the alternating current having a frequency lower than the alternating current of the frequency adjusted through the first adjusting step And a second adjusting step of supplying the compressed air to the compressor. The method according to claim 1,
Supplying an AC current having a frequency greater than the first frequency to the compressor before the second temperature measurement step if the temperature of the refrigerant measured in the first temperature measurement step is lower than a predetermined first temperature And a control unit for controlling the clothes processing apparatus. A receiving part for receiving a drying object;
A circulation flow path for drawing out the air in the accommodating portion and re-supplying the air to the accommodating portion;
An evaporator for exchanging heat with air flowing into the circulation channel to evaporate the refrigerant;
A condenser for exchanging heat with air passing through the evaporator to condense the refrigerant;
A compressor which pressurizes the refrigerant discharged from the evaporator to supply the refrigerant to the condenser, and controls a flow rate of the refrigerant through frequency adjustment of an alternating current;
A temperature sensor for measuring the temperature of the refrigerant discharged from the compressor;
And a controller for maintaining or changing the frequency of the alternating current supplied to the compressor based on the refrigerant temperature measured through the temperature sensor. 14. The method of claim 13,
Wherein the control unit increases the frequency of the alternating current supplied to the compressor by a predetermined reference frequency when the temperature difference between the two refrigerant temperatures measured with a time lag by the temperature sensor is smaller than a predetermined reference value Apparatus for processing clothes. 15. The method of claim 14,
Wherein the control unit reduces the frequency of the alternating current supplied to the compressor by a predetermined reference frequency if the temperature difference between the two refrigerant temperatures measured with the parallax through the temperature sensor is greater than a preset reference value. Processing device. 16. The method of claim 15,
Wherein the control unit maintains the frequency of the alternating current supplied to the compressor when a temperature difference between two refrigerant temperatures measured with a time lag through the temperature sensor is equal to a preset reference value.

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